op {
  graph_op_name: "SparseMatrixSoftmaxGrad"
  visibility: HIDDEN
  in_arg {
    name: "softmax"
    description: "A CSRSparseMatrix."
  }
  in_arg {
    name: "grad_softmax"
    description: "The gradient of `softmax`."
  }
  out_arg {
    name: "gradient"
    description: "The output gradient."
  }
  summary: "Calculates the gradient of the SparseMatrixSoftmax op."
}
